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Troubleshooting
Bluetooth
®
Pairing cannot be completed.
Check the Bluetooth
®
device condition.
The device cannot be connected.
The pairing of the device was unsuccessful or
the registration has been replaced. Try re-
pairing the device. ( 28)
This unit might be connected to a different
device. Disconnect the other device and try re-
pairing the device.
The device is connected, but audio cannot
be heard through this unit.
For some built-in Bluetooth
®
devices, you have
to set the audio output to “SU-C550” manually.
Read the operating instructions for the device
for details.
The sound is interrupted.
The device is out of the 10 m communication
range. Bring the Bluetooth
®
device closer to
this system.
Remove any obstacle between this system and
the device.
Other devices that use the 2.4 GHz frequency
band (wireless router, microwaves, cordless
phones, etc.) are interfering. Bring the
Bluetooth
®
device closer to this system and
distance it from the other devices.
Select “Mode1” for stable communication.
( 29)
PC
The PC does not recognise this unit.
Check your operating environment. ( 31)
Restart the PC, turn this unit to standby and
on, and then reconnect the USB cable.
Use another USB port of the connected PC.
Install the dedicated driver if using a PC with
Windows.
Cannot find music files stored on the PC.
When you play back music files over a network,
those that are not registered to its network
server are not displayed. For details, refer to
the operating instructions for your server.
Network
Cannot connect to the network.
Confirm the network connection and settings.
( 18)
If the network is set to be invisible, make the
network visible while you set up the network
for this unit or make a wired LAN connection.
This system’s Wi-Fi security supports WPA2.
Your wireless router must therefore be
WPA2 compatible. For details on the security
supported by your router and how to change
the settings, please refer to the operating
instructions or contact your internet service
provider.
Make sure that the multicast function on the
wireless router is enabled.
Depending on the router, WPS button may not
work. Try other methods. ( 18)
The wireless LAN environment or radio
interference in your area may cause connection
problem. In this case, try another connection
method. If the problem persists, make a wired
LAN connection. ( 18)
While the AC mains lead is disconnected, the
LAN cable must be connected or disconnected.
Cannot select this system as the output
speakers.
Make sure that the devices are connected to
the same network as this system.
Reconnect the devices to the network.
Turn the wireless router off and then on.
Turn this unit to standby and on, and then
select this system as the output speakers again.
42


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